Patents by Inventor Jason A. Nassar

Jason A. Nassar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Precharging a high-voltage bus using a voltage-regulated power supply
    Patent number: 8049372
    Abstract: Systems and methods are provided for precharging high-voltage buses. The precharge system comprises an energy source having a first terminal and a second terminal, wherein a first voltage is equal to a potential difference between the first terminal and the second terminal. The precharge system further comprises a bus having a first rail and a second rail, wherein a second voltage is equal to a potential difference between the first rail and the second rail. A first contactor is coupled between the first terminal and the first rail and a second contactor is coupled between the second terminal and the second rail. A controller is coupled to the energy source, the bus, and the contactors. The controller is configured to activate the second contactor, and thereafter activate the first contactor if the magnitude of a difference between the first voltage and the second voltage is less than a threshold tolerance.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: November 1, 2011
    Assignee: GM Global Technology Operations LLC
    Inventors: Vernon L. Newhouse, Jason A. Nassar, Jeffrey T. Wolak
  • PRECHARGING A HIGH-VOLTAGE BUS USING A VOLTAGE-REGULATED POWER SUPPLY
    Publication number: 20100001582
    Abstract: Systems and methods are provided for precharging high-voltage buses. The precharge system comprises an energy source having a first terminal and a second terminal, wherein a first voltage is equal to a potential difference between the first terminal and the second terminal. The precharge system further comprises a bus having a first rail and a second rail, wherein a second voltage is equal to a potential difference between the first rail and the second rail. A first contactor is coupled between the first terminal and the first rail and a second contactor is coupled between the second terminal and the second rail. A controller is coupled to the energy source, the bus, and the contactors. The controller is configured to activate the second contactor, and thereafter activate the first contactor if the magnitude of a difference between the first voltage and the second voltage is less than a threshold tolerance.
    Type: Application
    Filed: July 1, 2008
    Publication date: January 7, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Vernon L. NEWHOUSE, Jason A. NASSAR, Jeffrey T. WOLAK